feat: Implement Ansible for Proxmox VM management and refactor Mastodon Docker Compose, removing outdated service definitions.

ansible/README.md

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+# Home Server Ansible Configuration
+
+This directory contains Ansible playbooks for managing the Proxmox home server environment.
+
+## Directory Structure
+
+- `inventory/`: Contains the inventory file `hosts.ini` where you define your servers.
+- `playbooks/`: Contains the actual Ansible playbooks.
+- `ansible.cfg`: Local Ansible configuration.
+- `requirements.yml`: List of Ansible collections required.
+
+## Setup
+
+1.  **Install Requirements**:
+    ```bash
+    ansible-galaxy install -r requirements.yml
+    ```
+
+2.  **Configure Inventory**:
+    Edit `inventory/hosts.ini` and update the following:
+    -   `ansible_host`: The IP address of your Proxmox node.
+    -   `ansible_user`: The SSH user (usually root).
+    -   `proxmox_api_*`: Variables if you plan to use API-based modules in the future.
+    
+    *Note: Ensure you have SSH key access to your Proxmox node for passwordless login, or uncomment `ansible_ssh_pass`.*
+
+## Available Playbooks
+
+### Create Ubuntu Cloud Template (`playbooks/create_ubuntu_template.yml`)
+
+This playbook downloads a generic Ubuntu 22.04 Cloud Image and converts it into a Proxmox VM Template.
+
+**Usage:**
+
+```bash
+# Run the playbook
+ansible-playbook playbooks/create_ubuntu_template.yml
+```
+
+**Variables:**
+You can override variables at runtime or by editing the playbook:
+
+- `template_id`: Default `9000`
+- `template_name`: Default `ubuntu-2204-cloud`
+- `storage_pool`: Default `local-lvm`
+
+Example overriding variables:
+```bash
+ansible-playbook playbooks/create_ubuntu_template.yml -e "template_id=9001 template_name=my-custom-template"
+```